688138960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{3257}}^1$

素因数の和:3428

約数の個数: 80

約数和(自身を含む): 1696766400

約数和(自身を除く): 1008627440

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 139, 152, 190, 278, 304, 380, 556, 695, 760, 1112, 1390, 1520, 2224, 2641, 2780, 3257, 5282, 5560, 6514, 10564, 11120, 13028, 13205, 16285, 21128, 26056, 26410, 32570, 42256, 52112, 52820, 61883, 65140, 105640, 123766, 130280, 211280, 247532, 260560, 309415, 452723, 495064, 618830, 905446, 990128, 1237660, 1810892, 2263615, 2475320, 3621784, 4527230, 4950640, 7243568, 8601737, 9054460, 17203474, 18108920, 34406948, 36217840, 43008685, 68813896, 86017370, 137627792, 172034740, 344069480, 688138960]

約数ペア:

[(1, 688138960), (2, 344069480), (4, 172034740), (5, 137627792), (8, 86017370), (10, 68813896), (16, 43008685), (19, 36217840), (20, 34406948), (38, 18108920), (40, 17203474), (76, 9054460), (80, 8601737), (95, 7243568), (139, 4950640), (152, 4527230), (190, 3621784), (278, 2475320), (304, 2263615), (380, 1810892), (556, 1237660), (695, 990128), (760, 905446), (1112, 618830), (1390, 495064), (1520, 452723), (2224, 309415), (2641, 260560), (2780, 247532), (3257, 211280), (5282, 130280), (5560, 123766), (6514, 105640), (10564, 65140), (11120, 61883), (13028, 52820), (13205, 52112), (16285, 42256), (21128, 32570), (26056, 26410)]